自卸车多级液压缸乱序故障分析及解决方法  

Analysis and Solution on Disorder of Multi-stage Hydraulic Cylinder for Dump Truck

作　　者：李小明 李永奇 杨旭伟 阎堃 王伟伟 LI Xiao-ming;LI Yong-qi;YANG Xu-wei;YAN Kun;WANG Wei-wei(Xuzhou XCMG Hydraulics Co.,Ltd.,Xuzhou 221004,China;Tianjin Research Institute of Construction Machinery Co.,Ltd.,Tianjin 300409,China)

机构地区：[1]徐州徐工液压件有限公司,江苏徐州221004 [2]天津工程机械研究院有限公司,天津300409

出　　处：《液压气动与密封》2020年第6期95-96,共2页Hydraulics Pneumatics & Seals

基　　金：工信部2018年行业质量共性技术推广项目(CMIF-ZHL-20181225-S269F)。

摘　　要：某新开发型号自卸车多级液压缸在模拟工况试验验证过程中发现:自卸车多级液压缸在伸出和回收时存在乱序的现象。乱序故障严重时会导致自卸车车厢瞬间超速下滑,产生强烈的冲击造成严重事故。该文通过试验、拆检、分析,确定故障原因,并通过对比试验,确定最终解决方法,避免此类故障的再次发生。A new type of dump truck multi-stage hydraulic cylinder in the simulation of working conditions test found:the Cylinder in the expansion and retraction of the disorder phenomenon.When out of order fault is serious,it will lead to the dump truck carriage speeding down in an instant,resulting in strong impact and serious accident.This article through the test,the disassembly inspection,the analysis,determines the fault reason,and through the contrast test,determines the final solution,avoids this kind of fault to occur again.

关 键 词：自卸车多级液压缸 乱序 故障分析 解决方法 

分 类 号：TH137[机械工程—机械制造及自动化]